用简便方法计算.85x199+85 = = =用简便方法计算.85x199+85===
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![用简便方法计算.85x199+85 = = =用简便方法计算.85x199+85===](/uploads/image/z/265365-45-5.jpg?t=%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97.85x199%EF%BC%8B85+%3D+%3D+%3D%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97.85x199%EF%BC%8B85%3D%3D%3D)
用简便方法计算.85x199+85 = = =用简便方法计算.85x199+85===
用简便方法计算.85x199+85 = = =
用简便方法计算.
85x199+85
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=
=
用简便方法计算.85x199+85 = = =用简便方法计算.85x199+85===
85*(199+1)
85*200
17000
用简便方法计算.85x199+85 = = =用简便方法计算.85x199+85===
用简便方法计算怎么写85x199+85
98x199用简便方法怎么计算,
85x199+85简便方法什么做.
199.199x198-198.198x199用简便法计算
用简便方法做 199.199x198-198.198x199 18.9x178.178+0.49-17.8x189.189
用简便算法计算:199.199X198-198.198X199 18.9x178.178+0.49-17.8X189.189
(5又1/4)²-(3又3/4)²简便方法计算199²+1+2x199
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